Nail-driving machine.



R. HANSEN.

NAIL DRIVING MACHINE.

APPLICATION FILED MAR-31,1917.

Patented Apr. 9, 1918.

1,262,486 a SHEETS-SHEET V NVENTOR W ss 5 Half/77175 f/Il/ZJ/Z.

A-TT'oRNEY R HANSEN. NAIL DRIVING MACHINE.

APPLICATION FILED MAR- 3I I917. 1,262A86.

a SHEETS-SHEET 2.

/7 INVENTOR I. ATM W'TNESSES 46 305/2211: ffrz/zjaw.

ATTORNEY Patented Apr. 9, 1918.

R. HANSEN.

NAIL DRIVING MACHINE,

APPLICATION men MAR. 31. 1917.

Patented Apr. 9, 1918.

3 SHEETS-SHEET 3- firm/22115 jfmiscw.

UNITE STATES PATENT. orric.

RASMUS HANSEN, or SEATTLE, WASHINGTON.

NAIL-DRIvfnG MACI-flNE.

Application filed march 31, 1917. Serial no". 1581984.

To a ZZ tbhom itmay concern:

Be it known that I, RASM'US HANSEN, a citizen of Canada, residing at Seattle, in

the county of King and State of Washington, have invented new and useful Improve-- ments in Nail Dr-ivin'g Machines, of which the following is a specification.

This invention relates to nail driving machines and it has for its object to produce a device of this class which will be simple in construction and effective in operation.

A further object of the invention is to simplify and improve the mechanism whereby nails are fed, one by one, to the driving mechanism.

A further object of the invention is to produce a simple and improved escapement which will be actuated by the driving tool and whereby the passage of nails from the feed mechanism to the driving mechanism will be automatically controlled.

\Vith these and other ends in view which will readily appear as the nature of theinvention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the claims may be resorted to when desired.

In the drawings,

Figure 1 is a view in side elevation of the machine constructed in accordance with the invention.

Fig. 2 is a front view of the same.

Fig. 3 is a top plan view.

Fig. 4 is a vertical sectional view taken on the line M in Fig. 2 and showing one nail in position for being driven and the driving tool in a raised position for driving the same. r

Fig. 5 is a vertical sectional detail view enlarged, taken on the line 55 in Fig. 1.

Fig. dis a vertical sectional view taken on the line 66 in Fig. 5 and showing the driving tool in a lowered position having just driven a nail.

Fig. 7 is a vertical sectional view'taken anthe line 7- 7-i n Fig. 6.

Specification-of Letters Patent.

Patented Apr."9, 1918.

Figs. ,8- and 9 are sectional detail view taken on the lines 8-8 and 9 -9 in Figs. 5 and 7, respectively. Corresponding parts in the several figures of the drawings are denoted by like characters of reference.

The improved nail driving machine is equipped with a base or platform 15 adja-- cent to the one side edge of which ground engaging wheels or rollers 16 are supported. Secured to the platform at the other side edge thereof is a socket member 17 with the upper end of which a tubular casing 18 is threadedly connected, said casing consisting of an ordinary metallic tube having an internal diameter of approximately one inch although, of course, the precise dimensions 7 20, is mounted a tapering or funnel shaped guard member 21.

Secured to the front edge of the platformor base 15 are the lower ends ofbrace meinhere 22 sald brace members having approx'1 mately parallel lower portions and convergent upper portions 23 the upper extrel'ni ties of which are connected with earsor lugs .24 on the tubular casing by means of a bolt or pivot member 25, the latter serving also to support a handle 26. Pivotally and tiltably secured between the braces 22 is a n'a-il' box or receptacle 27, the latter being pref erably of V-shaped cross section or provided with a V-shaped bottom portion having'a longitudinal slot 28 through which the pointed ends of nails will be free to swing downward, the slot being, however, of a width less than the diameter of the heads of the nails which will thus hang suspended between the side walls of the slot 28, it being understood that some of the nails contained in the box will automatically assume this position owing to the tilting or shaking action 'to which the nail box or container is:

subjected when the machine" is in operation,

as will be hereinafter described". The rear wall ofthe box has a slot 29 of proper dimensions to permit the heads of nails to pass therethrough.

Fixed to the sides of the guard 21 are the ends of a pair of bars 30 which extend through a slot 31 in the guard, said bars being spaced apart so as to constitute a race way for the nails that are to be fed to the driving mechanism of the machine. The bars 30 are extended in the path of the nail box 27 the tilting movement of which in one direction will thus be limited. Beyond the point where they constitute a stopfor the nail box the bars 30 are diverged as shown, the ends of the diverging portions of the bars being riveted or otherwise secured on the brace members 22. Connected with and extending upwardly with respect to the bars 30 is an arcuate shield 32 which, when the discharge end of the nail box is swung or tilted in an upward direction will obstruct the slot 29 in the end of the nail box, preventing nails from passing therethrough. The lower end of the shield 32, however, has a slot or opening 33 which, when the end of the nail box is supported on the bars 30, communicates with the slot 29, permitting the passage of nail heads therethrough to the race way formed by the bars 30. The said race way, as will be seen, terminates within the upper end portion of the guard 21.

Secured on one side of the socket member 17 is the lower end of a spring 3a the upper end portion of which is twisted so as to lie adjacent to one side of the tubular casing 18, said spring terminating at its upper end i in a hook 35 having a sharp pointed bill 36 that extends in the'direction of the body of the spring. Extending through the body of the spring and projecting in the direction of the bill 36 is a set screw 37, said screw being disposed approximately in the horizontal plane of the bill 36, and spaced therefrom laterally. By adjustment of the screw the distance between the point of the screw and that of the bill may be varied, but it is to be observed that the pointed ends ofthe screw and the bill are to be overlapped as clearly indicated in Figs. 8 and 9. The spring 34 is provided with a cam member 38 that is adapted to be projected through a slot 39 in the side of the tubular casing 18.

Fitted for slidable movement in the cy- V lindrical casing 18 is the driving tool 40, the

same consisting of a cylindrical rod having an intermediate tapering portion ll and a cylindrical lower extremity 12 of reduced diameter, said tapered and reduced portions being adapted to engage within the funnel 19. The driving tool has at its upper end a handle 43 whereby it may be retracted in an upward direction. The driving tool 40 and the tubular casing 18 are also provided with stop members or flanges designated respectively by 41 and 18, one or both of ing tool is at the lower extremity of its movement, the wall thereof will lie in the path of the cam 38 thereby causing the upper end of the spring 34 to be moved outwardly with respect to the tubular casing 18. When the driving tool is retracted in an upward direction, it moves out of the path of the cam 38 which is now projected through the slot 39, causing the spring to occupy the position best shown in Fig. 5. When the driving tool isprojected downwardly to the limit of its movement the tapered portion thereof will engage the cam 38, thereby forcing the spring to the posi tion best seen in Fig. 7

The upper end of the guard 21 is cut away at one side, permitting the escapeinent device formed by the bill 38 and the set screw 37 to be projected into the path of the race way formed by the bars 30.

W hen the driving tool is at the downward is also retracted but the point of the set screw 37 will be in the path of the nails supported in the race way, permitting said nails to move down one step. When the bill hook is again projected downwardly, the point of the screw 37 will be retracted and one nail will be permitted to drop from the race way in the direction of the slot 20 protected by the guard 21, where said nail will be retained by engagement with the wall of the driving tool. By the next retraction of the driving tool the nail is permitted to drop into the funnel 19 in position for driving, and another nail will be fed past the point of the bill hook 36 to lie in engagement with the screw 37 of the escapement. The operation having thus been started, it is evident that by each clownward movement of the driving tool a nail will now be driven while by each upward movement of the driving tool a nailrwill be fed from the escapement device to the tunnel 19, it requiring two movements of. the driving tool, one in each direction, to sheet the feeding of a single nail from the escapement device to the funnel.

In operating the device the operator places his foot on thebase or platform 15, thereby holding the machine steady while the mechanism thereof is being manipulated. Grasping the handle 43 of the driving tool with one hand and the handle 26with the other hand, the latter is first manipulated to tilt the nail box, imparting a shaking motion thereto which will cause the nails to seek the slot 528 in the bottom of the box Where they will line themselves for operation. The driving tool is now reciprocated with the effect of first feeding and then driving a single nail, communication between the race way formed by the bars 30 and the nail receptacle being meanwhile cut off by the shield 32. The handle 26 is finally manipulated to restore the nail box to its initial feeding position after which, by grasping the handle 43, the platform of the machine maybe tilted so as to support it on the wheels or rollers 16 on which the machine may be readily moved to the next position for driving another nail.

The improved nail driving device as herein described is simple in construction and may be manufactured and marketed at a very moderate expense. It has been found extremely useful in driving nails for ship lap flooring in ware houses, on bridges and in many other places where the use of the machine will readily suggest itself. It obviously relieves the workman from the cramped and uncomfortable position which usually must be occupied in performing these classes of the carpenters work.

Having thus described the invention, what is claimed as new is:

1. In a nail driving machine, a tubular casing having an inlet slot, means including an escapement device for feeding nails through said slot, said escapement device comprising a spring having a hook shaped terminal and a set screw threaded through said spring and extending in the direction of the point of the hook but spaced therefrom, and a driving tool arranged for reciprocation in the tubular casing, said driving tool having a tapered intermediate portion; and a cam member secured on the spring of the escapement device and lying in the path of the tapered portion of the driving tool.

2. In a nail driving machine, a tubular casing having an inlet slot, a platform on which said casing is secured, braces connecting the platform with the tubular casing, a guard for the inlet slot, a race way consisting of spaced bars secured at one end within the guard, said bars having divergent portions terminally secured to the braces, a nail container pivoted between the braces, said container having a slotted bottom and an outlet slotadapted to communi- I cate with the race way, a shield connected with the bars constituting the race way, said shield lying in the path of the nail outlet of the nail container when the latter is moved from a nail discharging position and said shield having a slot communicating with the race way, and means for operating the nail container.

3. In a nail driving machine, a tubular casing having an inlet slot, a platform on which said casing is secured, braces connecting the platform with the tubular casing, a guard for the inlet slot, a race way consisting of spaced bars secured at one end within the guard, said bars having divergent. portions terminally secured to the braces, a nail container pivotedbetween the braces, said container having a slotted bottom and an outlet slot adapted to communicate with the race way, a pivotally supported handle, and a connection between the handle and the nail container whereby the latter may be tilted.

4. In a nail driving machine, a tubular casing having an inlet slot, a platform on which said casing is secured, braces connecting the platform with the tubular casing, a guard for the inlet slot, a race way consisting of spaced bars secured at one end within the guard, said bars having divergent portions terminally secured to the braces, a nail container pivoted between the braces, said container having a slotted bottom and an outletslot adapted to communicate with the race way, a shield connected with the bars constituting the race way, said shield lying in the path of the nail outlet of the nail container when the latter is moved from a nail discharging position and said shieldhaving a slot communicating with the race way, a pivotally supported handle, and a connection between the handle and the nail container whereby the latter may be tilted, and'means for controlling the passage of nails from the race way through the inlet slot.

In testimony whereof I aflix my signature.

RASMUS HANSEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

